If a Geologist Found Preserved Mud Cracks,he or She Could

question 17

Multiple Choice

If a geologist found preserved mud cracks,he or she could conclude that the environment in which they formed

• A) was once covered in wet mud.
• B) was once covered by a glacier.
• C) has been subjected to a major climate change event.
• D) was the site of a mass extinction event.

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Definitions:

Casparian Strip

A band of cell wall material in the roots of plants that is impervious to water and solutes, controlling the flow into the vascular system.

Endodermis

The endodermis is the innermost layer of cells in the root cortex of plants, serving as a selective barrier that regulates the flow of water and nutrients from the soil into the vascular system.

Vascular Cylinder

The central part of a root or stem containing the plant's vascular tissue, including xylem and phloem, responsible for water and nutrient transport.

Cortex

The outer layer of an organ or structure, such as the cerebral cortex of the brain or the cortex of the kidney.